| Administration Building, Lake Erie College | Painesville | Building | 1973 |
| Bedford Baptist Church | Bedford | Building | 2002 |
| Boyce, Julia F. Country Estate (Additional Documentation) | Willoughby | Building | 2023 |
| Brick Vernacular House No. 1 | Madison | Building | 1980 |
| Brick Vernacular House No. 2 | Madison | Building | 1980 |
| Casement House | Painesville | Building | 1975 |
| Cheese-vat Factory | Madison | Building | 1980 |
| Childs, Alpha Charles, House | Madison | Building | 1980 |
| Childs, Robertus W., House | Madison | Building | 1980 |
| Connecticut Land Company Office | Unionville | Building | 1973 |
| Corning-White House | Mentor | Building | 1972 |
| Coulby, Harry, Mansion | Wickliffe | Building | 1979 |
| Damon, George, House | Madison | Building | 1980 |
| Dayton, James, House | Madison | Building | 1980 |
| Dayton, James, House, II | Madison | Building | 1980 |
| DeHeck, Albert, House | Madison | Building | 1980 |
| Downtown Painesville Historic District | Painesville | District | 2020 |
| Downtown Willoughy Historic District | Willoughby | District | 1995 |
| Fairport Harbor West Breakwater Light | Fairport Harbor | Structure | 1992 |
| Fairport Marine Museum | Fairport Harbor | Structure | 1971 |
| Foster, Claud, House | Willowick | Building | 2004 |
| Fuller, Frances Ensign, House | Madison | Building | 1980 |
| Garfield Library | Mentor | Building | 1979 |
| Gilbert, Jane, House | Madison | Building | 1980 |
| Gill, H., House | Madison | Building | 1980 |
| Grantham, Norma, Site (33-La-139) | Fairport Harbor | Site | 1984 |
| Gray-Coulton House | Mentor | Building | 1975 |
| Green, Lucius, House | Perry | Building | 1976 |
| Hanna, Leonard C., Jr., Estate | Kirtland Hills | Building | 1979 |
| Hendry, Francis, House | Madison | Building | 1980 |
| Indian Point Fort | Painesville | Site | 1974 |
| Ingersoll, Cyrus J., House | Madison | Building | 1980 |
| James A. Garfield National Historic Site NHL | Mentor | Building | 1966 |
| Jones, John J., House | Madison | Building | 1980 |
| Kellogg, John, House and Barn | Madison | Building | 1980 |
| Kimball, Addison, House | Madison | Building | 1975 |
| Kimball, Lemuel II, House | Madison | Building | 1974 |
| Kimball, Solomon, House | Madison | Building | 1980 |
| Kirtland Temple NHL | Kirtland | Building | 1969 |
| Ladd's Tavern | Madison | Building | 1978 |
| Lake Shore and Michigan Southern RR Depot and Freight House | Mentor | Building | 1978 |
| Lawnfield-James A. Garfield Estate (Additional Documentation and Boundary Clarification) | Mentor | Building | 2015 |
| Lutz's Tavern | Painesville | Building | 1973 |
| Lyman, William, House | Madison | Building | 1980 |
| Madison Fort | Madison | Site | 1974 |
| Madison Seminary And Home | Madison | Building | 1979 |
| Mason, James, House | Mentor | Building | 1975 |
| Mathews House | Painesville | Building | 1973 |
| Mentor Avenue District | Painesville | District | 1978 |
| Mentor Village Hall | Mentor | Building | 2014 |
| Mentor Village School | Mentor | Building | 2005 |
| Metcalf, Rev. Harlan, House | Madison | Building | 1980 |
| Methodist Episcopal Church of Painesville, The | Painesville | Building | 1998 |
| Moore, Edward W. and Louise C., Estate | Mentor | Building | 1988 |
| Morley, Lewis, House | Painesville | Building | 1978 |
| Norfolk and Western Freight Station | Madison | Building | 1980 |
| Old South Church | Kirtland | Building | 1973 |
| Oliver, John G., House | Mentor | Building | 1981 |
| Paige, David R., House | Madison | Building | 1975 |
| Painesville City Hall | Painesville | Building | 1972 |
| Pease, George, House | Madison | Building | 1980 |
| Penfield, Louis A., House | Willoughby Hills | Building | 1997 |
| Sawyer-Wayside House | Mentor | Building | 1974 |
| Seeley, Uri, House | Painesville | Building | 1973 |
| Selby, Orland, House | Madison | Building | 1980 |
| Sessions House | Painesville | Building | 1973 |
| Smart Building | Willoughby | Building | 1983 |
| Smead House | Painesville | Building | 1974 |
| Smead, David, House | Madison | Building | 1980 |
| South Leroy Meetinghouse | Painesville | Building | 1979 |
| St. James Episcopal Church | Painesville | Building | 1975 |
| Staley, Mr. and Mrs. Karl A., House | Madison | Building | 2014 |
| Talcott, Joseph, House | Madison | Building | 1980 |
| Tappan, Judge Abraham, House | Unionville | Building | 1979 |
| Town Center District | Madison | District | 1980 |
| Unionville District School | Unionville | Building | 1978 |
| Unionville Tavern | Unionville | Building | 1973 |
| Ware, Edwin L., House | Madison | Building | 1980 |
| Whitney, Newel K., Store | Kirtland | Building | 1984 |
| Wilson, George D., House | Madison | Building | 1980 |
| Winans, Dr. J. C., House | Madison | Building | 1976 |
| Yager, John and Carrie, House | Mentor | Building | 1994 |
| Young, Benjamin and Mary, House | Mentor | Building | 1996 |
Kirtland Temple NHL Kirtland · Building · listed 1969 
James A. Garfield National Historic Site NHL Mentor · Building · listed 1966 
Administration Building, Lake Erie College Painesville · Building · listed 1973 
Bedford Baptist Church Bedford · Building · listed 2002 
Fairport Harbor West Breakwater Light Fairport Harbor · Structure · listed 1992 
Fairport Marine Museum Fairport Harbor · Structure · listed 1971 
Kimball, Addison, House Madison · Building · listed 1975 
Lake Shore and Michigan Southern RR Depot and Freight House Mentor · Building · listed 1978 
Madison Seminary And Home Madison · Building · listed 1979 
Methodist Episcopal Church of Painesville, The Painesville · Building · listed 1998